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논문 기본 정보

자료유형
학술저널
저자정보
하석재 (한국생산기술연구원 뿌리산업기술연구소 금형기술그룹) 박정연 (한국생산기술연구원 뿌리산업기술연구소 금형기술그룹) 김건희 (한국생산기술연구원 강원지역본부 적층성형그룹) 윤길상 (한국생산기술연구원 뿌리산업기술연구소 금형기술그룹)
저널정보
한국금형공학회 한국금형공학회지 한국금형공학회지 제13권 제1호
발행연도
2019.1
수록면
5 - 12 (8page)

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In this paper, we studied the micro tool deflection, micro cutting with low temperature, and deformation of micro ribs caused by cutting forces. First, we performed an integrated machining error compensation method based on captured images of tool deflection shapes in micro cutting process. In micro cutting process, micro tool deflection generates very serious problems in contrast to macro tool deflection. To get the real images of micro tool deflection, it is possible to estimate tool deflection in cutting conditions modeled and to compensate for machining errors using an iterative algorithm correcting tool path. Second, in macro cutting fields, the cryogenic cutting process has been applied to cut the refractory metal but, the serious problem may be generated in micro cutting fields by the cryogenic environment. However, if the proper low temperature is applied to micro cutting area, the cooling effect of cutting heat is expected. Such effect can make the reduction of tool wear and burr formation. For verifying this passibility, the micro cutting experiment at low temperature was performed and SEM images were analyzed. Third, the micro pattern was deformed by the cutting forces and the shape error occurred in the sidewall multi-step cutting process were minimized. As the results, the relationship between the cutting conditions and the deformation of micro-structure during micro cutting process was investigated.

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